var deviceWidth;
setHtmlFontSize()
if(window.addEventListener){
	window.addEventListener('resize',function(){
		setHtmlFontSize()
	},false)
}
function setHtmlFontSize(){
	deviceWidth = document.documentElement.clientWidth > 1920 ? 1920 : document.documentElement.clientWidth
	document.getElementsByTagName('html')[0].style.cssText = 'font-size:'+deviceWidth/19.20 +'px !important'
}

